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v4l2: fix division by 0 for complex video formats

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So complex video formats have 0 as pstride. Don't try to divide the
stride in such cases.

https://bugzilla.gnome.org/show_bug.cgi?id=792596
This commit is contained in:
Guillaume Desmottes 2018-01-17 11:10:37 +01:00 committed by Nicolas Dufresne
parent 3bbfd15047
commit f7e280bf0d
1 changed files with 11 additions and 2 deletions
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13
sys/v4l2/gstv4l2object.c
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@ -3022,7 +3022,7 @@ gst_v4l2_object_save_format (GstV4l2Object * v4l2object,
{
const GstVideoFormatInfo *finfo = info->finfo;
gboolean standard_stride = TRUE;
gint stride, padded_width, padded_height, i;
gint stride, pstride, padded_width, padded_height, i;
if (GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_ENCODED) {
v4l2object->n_v4l2_planes = 1;
@ -3036,7 +3036,16 @@ gst_v4l2_object_save_format (GstV4l2Object * v4l2object,
else
stride = format->fmt.pix.bytesperline;
padded_width = stride / GST_VIDEO_FORMAT_INFO_PSTRIDE (finfo, 0);
pstride = GST_VIDEO_FORMAT_INFO_PSTRIDE (finfo, 0);
if (pstride) {
padded_width = stride / pstride;
} else {
/* pstride can be 0 for complex formats */
GST_WARNING_OBJECT (v4l2object->element,
"format %s has a pstride of 0, cannot compute padded with",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (info)));
padded_width = stride;
}
if (padded_width < format->fmt.pix.width)
GST_WARNING_OBJECT (v4l2object->dbg_obj,